SuperFreakonomics

Many people who in previous generations would have died from heart disease are now living long enough to die from cancer instead. - SuperFreakonomics, Levitt & Dubner

This book is power-packed with such economics. I'm only halfway through and I daresay already its better the first book, Freakonomics. Pick this up for an interesting read.

For example, they list down average prostitute's charges per action, average action per week and other data in the first chap... yeah. I can hear you rushing out to find this book already.